11001005055 has 12 divisors (see below), whose sum is σ = 19068408840. Its totient is φ = 5867202672.

The previous prime is 11001005033. The next prime is 11001005063. The reversal of 11001005055 is 55050010011.

It is not a de Polignac number, because 11001005055 - 2⁶ = 11001004991 is a prime.

It is a super-2 number, since 2×11001005055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122233345 + ... + 122233434.

It is an arithmetic number, because the mean of its divisors is an integer number (1589034070).

Almost surely, 2^11001005055 is an apocalyptic number.

11001005055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11001005055 is a deficient number, since it is larger than the sum of its proper divisors (8067403785).

11001005055 is a wasteful number, since it uses less digits than its factorization.

11001005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244466790 (or 244466787 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 11001005055 its reverse (55050010011), we get a palindrome (66051015066).

The spelling of 11001005055 in words is "eleven billion, one million, five thousand, fifty-five".